Here is a short video of Big Brown bats trying to re-enter a bat proofed home in White Water Wisconsin. I bat proofed the home the day before, and told the client that she would see this sort of response at about 4:30 AM. She took the time to film it for me, and send it! Bats find there way in by smell, and the smell disparate before it reaches the end of the tube. If placed properly, the tube lets the bats out, but not back inside. Secondary entry points are sealed using strong sealants instead of calk so it will last several years. Call now for a free inspection on bat proofing your home! Click the link below to see bats trying to re enter a home.